CN111806486A - Ventilation system and control method of subway train - Google Patents
Ventilation system and control method of subway train Download PDFInfo
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- CN111806486A CN111806486A CN202010533799.6A CN202010533799A CN111806486A CN 111806486 A CN111806486 A CN 111806486A CN 202010533799 A CN202010533799 A CN 202010533799A CN 111806486 A CN111806486 A CN 111806486A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0018—Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The invention relates to the field of subway trains, in particular to a ventilation system of a subway train and a control method, wherein a first air inlet pipe, a second air inlet pipe and an air supply pipe are arranged in a gap between an inner shell and an outer shell of the train, the space between the inner shell and the outer shell of the train is effectively utilized, an air conditioning component with larger weight is arranged at the bottom of the outer shell, the gravity center of a train body is greatly reduced, the space at the top of the train body is prevented from being invaded, the clear height of the inner shell can be further improved, the routine overhaul and maintenance of a heat pump device, an air supply adjusting device and an air exhaust adjusting device of the air conditioning component are facilitated for train maintenance personnel, a refrigeration air duct and a heating air duct are facilitated for the train maintenance personnel, the air supply cleanness of the ventilation system of the subway train is ensured, the second air inlet pipe can collect waste heat generated by a traction motor on a, so as to reduce the energy consumption of the heat pump device, save energy and protect environment.
Description
Technical Field
The invention relates to the field of subway trains, in particular to a ventilation system of a subway train and a control method.
Background
At present, most of fresh air systems and air conditioning systems of subway trains are designed in an integrated mode, are arranged at the top of a train body of the subway train and are used for providing comfortable temperature and humidity environments for passengers in the subway train. The existing train ventilation system (including fresh air and air conditioner) has the following disadvantages: 1. a subway train can generate a large amount of waste heat during operation, and a train ventilation system lacks the function of recycling the waste heat, so that the subway train is not beneficial to energy conservation and environmental protection, and the energy consumption of the whole subway system is increased; 2. the train ventilation system is positioned at the top of the train body, train maintenance personnel need high climbing maintenance, the operation space at the top of the train body is extremely limited, the maintenance difficulty of the train ventilation system is increased, and meanwhile, the train ventilation system is higher in arrangement height, so that the center of gravity of a train is moved upwards, and the stable operation of the train is not facilitated; 3. the train ventilation system occupies the top space of the train body, which is one of the main reasons that the clear height in the subway train in China is lower at present, so that a luggage rack cannot be additionally arranged in part of long-distance subway trains (such as Beijing subway 22 lines and Guangzhou subway 18 lines), and the problem of riding experience of the long-distance subway trains cannot be solved.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a ventilation system for a subway train and a control method thereof, so as to solve the problems that the existing ventilation system for a train cannot recover waste heat generated by the train, is difficult to maintain, and occupies the head space of the train.
Based on the ventilation system, the invention provides a subway train ventilation system, wherein a train body of the subway train comprises an inner shell and an outer shell, the outer shell is positioned outside the inner shell, a gap is formed between the outer shell and the inner shell, and the outer shell comprises an air inlet assembly, an air conditioning assembly and an air supply assembly;
the air inlet assembly comprises a first air inlet device and a second air inlet device, the first air inlet device comprises a first air inlet pipe, the first air inlet pipe is arranged in the gap, the air inlet end of the first air inlet pipe is positioned at the top of the outer shell, and the air exhaust end of the first air inlet pipe is positioned at the bottom of the outer shell; the second air inlet device comprises a second air inlet pipe arranged at the bottom of the outer shell, and the air inlet end of the second air inlet pipe is arranged opposite to the bogie of the vehicle body;
the air conditioning assembly is arranged at the bottom of the outer shell and comprises a heat pump device, an air inlet adjusting device, an air outlet adjusting device, a refrigerating air channel and a heating air channel which are arranged in parallel along the length direction of the vehicle body, an evaporator of the heat pump device is arranged in the refrigerating air channel, and a condenser of the heat pump device is arranged in the heating air channel; the air inlet adjusting device is respectively communicated with the air inlet ends of the refrigerating air duct and the heating air duct and the air outlet ends of the first air inlet pipe and the second air inlet pipe;
the air supply assembly comprises an air supply device and a plurality of air supply pipes, the air supply pipes are arranged in the gaps, the air exhaust adjusting devices are respectively communicated with the air exhaust ends of the refrigerating air channel and the heating air channel and the air inlet ends of the air supply pipes, the air exhaust ends of the air supply pipes are communicated with the air supply device, and the air supply device is located at the top of the inner shell and located between the inner shell and the outer shell.
Preferably, an air deflector rotationally connected with the second air inlet pipe is arranged in the air inlet end of the second air inlet pipe, the air deflector has a closed air guiding state and a continuous air guiding state, when the air deflector is switched from the continuous air guiding state to the closed air guiding state, the air deflector seals the air inlet end of the second air inlet pipe, the air deflector is obliquely arranged with the horizontal plane, and the outer wall surface of the air deflector faces the lower part of the vehicle body; when the air deflector is switched from a closed air guiding state to a continuous air guiding state, the air deflector rotates to be located at the air inlet end of the second air inlet pipe.
Preferably, the air inlet adjusting device comprises a refrigerating air inlet valve and a heating air inlet valve, the refrigerating air inlet valve is arranged at the air inlet end of the refrigerating air duct, and the heating air inlet valve is arranged at the air inlet end of the heating air duct;
when the valve plate of the refrigerating air inlet valve is closed, the valve plate is obliquely arranged with the refrigerating air channel so as to guide the air in the air inlet adjusting device to flow to the heating air channel; the valve plate of the heating air inlet valve is obliquely arranged with the heating air channel when being closed so as to guide the air in the air inlet adjusting device to flow to the refrigerating air channel.
Preferably, the cooling air duct is provided with a first waste heat outlet located at the exhaust side of the evaporator, and the heating air duct is provided with a second waste heat outlet located at the exhaust side of the condenser; the air exhaust adjusting device comprises a refrigerating air exhaust valve and a heating air exhaust valve, the refrigerating air exhaust valve is arranged at the air exhaust end of the refrigerating air duct, and the heating air exhaust valve is arranged at the air exhaust end of the heating air duct;
the valve plate of the refrigeration exhaust valve is obliquely arranged with the refrigeration air channel when being closed so as to guide the air in the refrigeration air channel to flow to the first waste heat outlet; and a valve plate of the heating exhaust valve is obliquely arranged with the heating air duct when being closed so as to guide the air in the heating air duct to flow to the second waste heat outlet.
Preferably, the refrigerating air duct is provided with a first heat exchange opening and closing device and a first heat exchange opening located on the air inlet side of the evaporator, and the heating air duct is provided with a second heat exchange opening and closing device and a second heat exchange opening located on the air inlet side of the condenser;
the first heat exchange opening and closing device is used for simultaneously closing or yielding the first heat exchange port and the first waste heat discharge port, and the second heat exchange opening and closing device is used for simultaneously closing or yielding the second heat exchange port and the second waste heat discharge port.
Preferably, an air supply valve is arranged on the air inlet end of the air supply pipe and used for sealing or yielding the air supply pipe.
Preferably, two first air inlet pipes are arranged at the end part of the vehicle body, and the two first air inlet pipes are respectively positioned at two sides of the vehicle body; the middle part of the vehicle body is provided with at least two air supply pipes.
Preferably, the top of the inner casing is provided with a plurality of mounting holes arranged along the length direction of the vehicle body, the air supply device comprises an air supply cavity and a flow equalizing plate, the lower part of the air supply cavity is communicated with the mounting holes, the air supply pipe is communicated with the side edge of the air supply cavity, and the flow equalizing plate is arranged in the mounting holes.
Preferably, a plurality of flow distribution plates which are inclined to the horizontal plane are arranged in the air supply cavity, the plurality of flow distribution plates are arranged along a reference inclined plane, and the reference inclined plane is inclined to the flow equalization plate.
In order to solve the same technical problem, the invention also provides a control method of a ventilation system of a subway train, which comprises the following steps:
in the refrigeration mode, the air deflector is switched to a closed air guide state, the first air inlet pipe inputs air into the air inlet adjusting device, the refrigeration air inlet valve and the refrigeration air outlet valve are opened, the first heat exchange opening and closing device simultaneously seals the first heat exchange port and the first waste heat outlet, the heating air inlet valve and the heating air outlet valve are closed, the second heat exchange opening and closing device simultaneously lets the second heat exchange port and the second waste heat outlet, the heat pump device is started to transfer the heat of the air in the refrigeration air channel into the heating air channel, and the cold air generated in the refrigeration air channel is conveyed to the air supply cavity through the air supply pipe;
in the heating mode, the air deflector is switched to a continuous air guiding state, the first air inlet pipe and the second air inlet pipe input air into the air inlet adjusting device, the rotation angle of the air deflector is adjusted according to a set target temperature to adjust the air inlet proportion of the first air inlet pipe and the second air inlet pipe, the refrigerating air inlet valve and the refrigerating air outlet valve are closed, the first heat exchange opening and closing device simultaneously lets the first heat exchange port and the first waste heat outlet, the heating air inlet valve and the heating air outlet valve are opened, the second heat exchange opening and closing device simultaneously seals the second heat exchange port and the second waste heat outlet, the heat pump device is started to transfer the heat of the air in the refrigerating air channel into the heating air channel, and the hot air generated in the heating air channel is conveyed to the air supply cavity through the air supply pipe.
The invention relates to a ventilation system of a subway train and a control method, wherein a first air inlet pipe, a second air inlet pipe and an air supply pipe are arranged in a gap between an inner shell and an outer shell of the train, so that the space between the inner shell and the outer shell of the train is effectively utilized, an air conditioning component with larger weight is arranged at the bottom of the outer shell, the gravity center of a train body is greatly reduced, the top space of the train body is prevented from being invaded, the net height of the inner shell can be further improved, the routine overhaul and maintenance of a heat pump device, an air supply adjusting device and an air exhaust adjusting device of the air conditioning component are facilitated for train maintenance personnel, a refrigeration air duct and a heating air duct are facilitated for the train maintenance personnel, the cleanness of the ventilation system of the subway train is ensured, the second air inlet pipe can collect waste heat generated by a traction motor on a bogie when the subway train is heated, energy conservation and environmental protection.
Drawings
Fig. 1 is one of schematic perspective views of a ventilation system of a subway train according to an embodiment of the present invention;
fig. 2 is a second schematic perspective view of a ventilation system of a subway train according to an embodiment of the present invention;
fig. 3 is an internal structural view of a ventilation system of a subway train according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an air conditioning assembly of a ventilation system of a subway train according to an embodiment of the present invention;
figure 5 is a schematic side sectional view of a ventilation system of a subway train in accordance with an embodiment of the present invention;
fig. 6 is a schematic structural view of an air supply device of a ventilation system of a subway train according to an embodiment of the present invention.
Wherein, 100, the air inlet component; 110. a first air inlet pipe; 120. a second air inlet pipe; 130. an air deflector; 200. an air conditioning assembly; 210. a refrigeration air duct; 211. a first waste heat discharge port; 212. a first heat exchange on-off device; 213. a first heat exchange port; 220. a heating air duct; 221. a second waste heat discharge port; 222. a second heat exchange on-off device; 223. a second heat exchange port; 230. an evaporator; 240. a condenser; 250. a refrigeration air inlet valve; 260. a heating air inlet valve; 270. a refrigeration exhaust valve; 280. a heating exhaust valve; 300. an air supply assembly; 310. an air supply pipe; 320. an air supply cavity; 330. a flow equalizing plate; 340. a splitter plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 6, a ventilation system of a subway train of the present invention is schematically shown. The subway train's automobile body includes interior casing and shell body, and the shell body is located the outside of interior casing, and is equipped with the space between the lateral wall of the two, and the shell body is as the outer protection architecture of automobile body for protect the inside electrical equipment of shell body, personnel, constituted subway train's appearance structure simultaneously, and the inside space that forms of interior casing then is used for supplying the passenger to take, stand and use, keeps apart subway train's electrical equipment and passenger simultaneously.
The ventilation system of the subway train comprises an air inlet assembly 100, an air conditioning assembly 200 and an air supply assembly 300.
The air intake assembly 100 includes a first air intake device and a second air intake device, the first air intake device includes a first air intake pipe 110, the first air intake pipe 110 is disposed in the gap, an air intake end of the first air intake pipe 110 is disposed at the top of the outer shell, an air exhaust end of the first air intake pipe 110 is disposed at the bottom of the outer shell, the first air intake pipe 110 disposed in the gap can fully utilize the space between the inner shell and the outer shell, of course, a fan can be disposed at the air intake end of the first air intake pipe 110 according to actual requirements to actively suck the external air into the first air intake pipe 110. The second air inlet device comprises a second air inlet pipe 120 arranged at the bottom of the outer shell, the second air inlet pipe 120 is located between two bogies of the train body, an air inlet end of the second air inlet pipe 120 is arranged opposite to the bogies of the train body, when the subway train moves, a traction motor on the bogies runs to generate a large amount of waste heat (particularly in the process of acceleration and deceleration of the subway train), air heated by the traction motor moves relative to the subway train, namely the air heated by the traction motor flows to the second air inlet pipe 120, and the second air inlet pipe 120 is used for collecting the air heated by the traction motor.
The blowing module 300 includes a blowing device and a plurality of blowing pipes 310, the blowing pipes 310 are disposed in the gap, and the blowing pipes 310 disposed in the gap can fully utilize the space between the inner case and the outer case. The exhaust adjusting device is respectively communicated with the exhaust ends of the cooling air duct 210 and the heating air duct 220 and the air inlet end of the air supply pipe 310, and is used for controlling air to flow out of the cooling air duct 210 or the heating air duct 220. The air exhaust end of the air supply pipe 310 is communicated with the air supply device, the air supply device is positioned at the top of the inner shell and positioned between the inner shell and the outer shell, the air supply pipe 310 can convey air in the hot air duct 220 or the refrigerating air duct 210 to the air supply device, and the air supply device sends clean air which is subjected to temperature control and humidity control into the inner shell, so that a comfortable temperature and humidity environment is provided for passengers.
The invention relates to a ventilation system of a subway train and a control method, wherein a first air inlet pipe 110, a second air inlet pipe 120 and an air supply pipe 310 are arranged in a gap between an inner shell and an outer shell of the train, so that the space between the inner shell and the outer shell of the train is effectively utilized, an air conditioning component 200 with larger weight is arranged at the bottom of the outer shell, the gravity center of a train body is greatly reduced, the space at the top of the train body is prevented from being occupied, the clear height of the inner shell can be further improved, the routine overhaul and maintenance of a heat pump device, an air supply adjusting device and an air exhaust adjusting device of the air conditioning component 200 are facilitated for train maintenance personnel, the refrigeration air duct 210 and the heating air duct 220 are facilitated for the train maintenance personnel to ensure the air supply cleanness of the ventilation system of the subway train, the second air inlet pipe 120 can collect waste heat generated by a traction motor on a bogie during the heating so as, energy conservation and environmental protection.
Referring to fig. 5, an air deflector 130 is rotatably connected to the air inlet end of the second air inlet duct 120, and the upper end of the air deflector 130 is rotatably connected to the upper end of the air inlet end of the second air inlet duct 120. The air deflector 130 has a closed air guiding state and a continuous air guiding state, when the air deflector 130 is switched from the continuous air guiding state to the closed air guiding state, the air deflector 130 is turned downwards to seal the air inlet end of the second air inlet pipe 120, the air deflector 130 is arranged obliquely with the horizontal plane, and the outer wall surface of the air deflector 130 faces the lower part of the train body, so that the wind resistance of the subway train is reduced. When the air deflector 130 is switched from the closed air deflecting state to the continuous air deflecting state, the air deflector 130 rotates to be located at the air inlet end of the second air inlet pipe 120, in the running process of the subway train, hot air heated by the traction motor can flow into the second air inlet pipe 120, meanwhile, the air inlet end of the second air inlet pipe 120 is further provided with a servo motor and a speed reducer for driving the air deflector 130 to rotate, and the servo motor can accurately control the rotation angle of the air deflector 130 so as to adjust the air inlet amount of the second air inlet pipe 120.
Referring to fig. 3 and 4, the air inlet adjusting device includes a cooling air inlet valve 250 and a heating air inlet valve 260, the cooling air inlet valve 250 is disposed at the air inlet end of the cooling air duct 210, and the heating air inlet valve 260 is disposed at the air inlet end of the heating air duct 220. The refrigeration air inlet valve 250 and the heating air inlet valve 260 are both electrically controlled air valves, that is, a servo motor is adopted to drive a valve plate of the refrigeration air inlet valve 250 to rotate (or a valve plate of the heating air inlet valve 260 to rotate) so as to control the opening or closing of the refrigeration air inlet valve 250 (or the heating air inlet valve 260), and in the embodiment, the opening or closing states of the refrigeration air inlet valve 250 and the heating air inlet valve 260 are opposite, that is, the refrigeration air inlet valve 250 is closed when opened, and the heating air inlet valve 260 is opened when closed, so as to switch the refrigeration state and the heating state of the ventilation system. Of course, the intake sides of the heating intake valve 260 and the cooling intake valve 250 may also be adapted with filters for filtering dust and particulate matter.
The valve plate of the refrigeration air inlet valve 250 is obliquely arranged with the refrigeration air duct 210 when closed (meanwhile, the valve plate of the refrigeration air inlet valve 250 is perpendicular to the horizontal plane when closed), so as to guide the air in the air inlet adjusting device to flow to the heating air duct 220; correspondingly, the valve plate of the heating intake valve 260 is disposed obliquely to the heating air duct 220 when closed (meanwhile, the valve plate of the heating intake valve 260 is perpendicular to the horizontal plane when closed), so as to guide the air in the intake air adjusting device toward the cooling air duct 210. In a refrigerating state of the ventilation system, the refrigerating air inlet valve 250 is opened, and the valve plate of the heating air inlet valve 260 is closed to guide air to flow to the refrigerating air inlet valve 250, so that smooth air flow is ensured; on the contrary, in the heating state of the ventilation system, the heating intake valve 260 is opened, and the valve plate of the cooling intake valve 250 is closed to guide the air to flow to the heating intake valve 260, so as to ensure smooth air flow.
The cooling air duct 210 is provided with a first heat exchange opening and closing device 212, a first waste heat discharge port 211 located on the exhaust side of the evaporator 230, and a first heat exchange port 213 located on the air intake side of the evaporator 230, the first heat exchange opening and closing device 212 is used for simultaneously closing or giving way to the first heat exchange port 213 and the first waste heat discharge port 211, the first heat exchange opening and closing device 212 may be a wind shield movably connected to the cooling air duct 210, and the first waste heat discharge port 211 and the first heat exchange port 213 may be respectively provided with a filter to prevent pollutants such as dust, particles and the like from invading the cooling air duct 210.
Correspondingly, the heating air duct 220 is provided with a second heat exchange opening and closing device 222, a second waste heat discharge port 221 located on the exhaust side of the condenser 240, and a second heat exchange port 223 located on the air intake side of the condenser 240, the second heat exchange opening and closing device 222 is used for simultaneously closing or letting the second heat exchange port 223 and the second waste heat discharge port 221, the second heat exchange opening and closing device 222 may be a wind shield movably connected to the heating air duct 220, and the second waste heat discharge port 221 and the second heat exchange port 223 may be respectively provided with a filter to prevent pollutants such as dust and particles from invading the heating air duct 220.
The exhaust adjusting device includes a cooling exhaust valve 270 and a heating exhaust valve 280, the cooling exhaust valve 270 is disposed at the exhaust end of the cooling air duct 210, and the heating exhaust valve 280 is disposed at the exhaust end of the heating air duct 220. The cooling exhaust valve 270 and the heating exhaust valve 280 are both electrically controlled air valves, that is, a servo motor is used to drive a valve plate of the cooling exhaust valve 270 (or a valve plate of the heating exhaust valve 280) to rotate so as to control the opening or closing of the cooling exhaust valve 270 (or the heating exhaust valve 280), and in the present embodiment, the opening or closing states of the cooling exhaust valve 270 and the heating exhaust valve 280 are opposite, that is, the cooling exhaust valve 280 is closed when the cooling exhaust valve 270 is opened, and the heating exhaust valve 280 is opened when the cooling exhaust valve 270 is closed, so as to switch the cooling state and the heating state of the ventilation system. It is understood that the heating intake valve 260 and the heating exhaust valve 280 are simultaneously opened or simultaneously closed, and the cooling intake valve 250 and the cooling exhaust valve 270 are simultaneously opened or simultaneously closed.
When the cooling air inlet valve 250 and the cooling air outlet valve 270 are opened, the first heat exchange opening/closing device 212 simultaneously closes the first heat exchange port 213 and the first waste heat discharge port 211, and at the same time, the heating air inlet valve 260 and the heating air outlet valve 280 are closed, the second heat exchange opening/closing device 222 simultaneously lets the second heat exchange port 223 and the second waste heat discharge port 221, at this time, the ventilation system is in a cooling state, and outside air enters the heating air duct 220 through the second heat exchange port 223 and discharges heat dissipated by the condenser 240 from the second waste heat discharge port 221.
When the heating air intake valve 260 and the heating air exhaust valve 280 are opened, the second heat exchange opening and closing device 222 simultaneously closes the second heat exchange port 223 and the second waste heat exhaust port 221, and at the same time, the cooling air intake valve 250 and the cooling air exhaust valve 270 are closed, the first heat exchange opening and closing device 212 simultaneously lets the first heat exchange port 213 and the first waste heat exhaust port 211, at this time, the ventilation system is in a heating state, and outside air enters the cooling air duct 210 through the first heat exchange port 213, transfers heat to the evaporator 230 and then is exhausted from the first waste heat exhaust port 211.
In addition, the valve plate of the cooling air discharging valve 270 is disposed obliquely to the cooling air duct 210 when closed (meanwhile, the valve plate of the cooling air discharging valve 270 is perpendicular to the horizontal plane when closed) to guide the air in the cooling air duct 210 to flow to the first waste heat discharging port 211; accordingly, the valve plate of the hot air exhaust valve 280 is disposed to be inclined from the hot air duct 220 when closed (meanwhile, the valve plate of the hot air exhaust valve 280 is perpendicular to the horizontal plane when closed) to guide the air in the hot air duct 220 to flow to the second waste heat discharge port 221.
In some alternative embodiments, the air inlet end of the air supply pipe 310 is provided with an air supply valve, and the air supply valve is used for closing or avoiding the air supply pipe 310.
In some alternative embodiments, two first air inlet pipes 110 are disposed at the end of the vehicle body, and the two first air inlet pipes 110 are disposed at two sides of the vehicle body, respectively, and at least two air supply pipes 310 are disposed at the middle of the vehicle body. The first air inlet duct 110 and the blast duct 310 can effectively use the space between the outer case and the inner case.
As shown in fig. 6, a plurality of mounting holes are formed in the top of the inner housing and arranged along the length direction of the vehicle body, the mounting holes are preferably rectangular, the lighting lamps can be mounted on the inner wall surfaces of the inner housing on the two sides of the mounting holes according to actual requirements, the air supply device comprises an air supply cavity 320 and a flow equalizing plate 330, the lower portion of the air supply cavity 320 is communicated with the mounting holes, the air supply pipe 310 is communicated with the side edge of the air supply cavity 320, the flow equalizing plate 330 is arranged in the mounting holes, and the air subjected to temperature control and humidity control is conveyed to the air supply cavity 320 through the air supply pipe 310 and falls into the inner housing. However, in the existing air supply system of the subway train, only the blocking net (which is used for preventing a passenger from extending a finger into the air supply duct) is installed at the air exhaust end of the air supply duct, and the air exhaust area of the air exhaust opening of the air supply duct is extremely small and even smaller than the lighting lamp strip, so that the air speed of each air exhaust opening is large, and the passenger standing below the air exhaust opening is easily uncomfortable due to low-temperature large-air-volume air conditioning air. The two sides of the mounting hole of the invention are as wide as the top surface of the inner shell, so that the area of the flow equalizing plate 330 is larger, the air speed of the air discharged from the flow equalizing plate 330 is lower, and the discomfort of passengers is avoided.
In addition, a plurality of flow dividing plates 340 are disposed in the air supply cavity 320, the flow dividing plates 340 are disposed along a reference inclined plane, the reference inclined plane is disposed obliquely to the flow equalizing plate 330, and the flow dividing plates 340 can divide the air supplied from the air supply pipe 310 into the air supply cavity 320 and guide the air to the flow equalizing plate 330, so that the downdraft at the air exhaust side of the flow equalizing plate 330 is more uniform.
In order to solve the same technical problem, the invention also provides a control method of a ventilation system of a subway train, which comprises the following steps:
in the cooling mode, the air deflector 130 is switched to a closed air guiding state, the first air inlet pipe 110 inputs air into the air inlet adjusting device, the cooling air inlet valve 250 and the cooling air outlet valve 270 are opened, the first heat exchange opening and closing device 212 simultaneously closes the first heat exchange port 213 and the first waste heat outlet 211, the heating air inlet valve 260 and the heating air outlet valve 280 are closed, the second heat exchange opening and closing device 222 simultaneously lets the second heat exchange port 223 and the second waste heat outlet 221, the heat pump device is started to transfer the heat of the air in the cooling air duct 210 to the heating air duct 220, and the cold air generated in the cooling air duct 210 is conveyed to the air supply cavity 320 through the air supply pipe 310;
in the heating mode, the air deflector 130 is switched to a continuous air deflecting state, the first air inlet pipe 110 and the second air inlet pipe 120 input air into the air inlet adjusting device, the rotation angle of the air deflector 130 is adjusted according to a set target temperature to adjust the air inlet ratio of the first air inlet pipe 110 and the second air inlet pipe 120, the cooling air inlet valve 250 and the cooling air outlet valve 270 are closed, the first heat exchange opening and closing device 212 simultaneously allows the first heat exchange opening 213 and the first waste heat outlet 211, the heating air inlet valve 260 and the heating air outlet valve 280 are opened, the second heat exchange opening and closing device 222 simultaneously seals the second heat exchange opening 223 and the second waste heat outlet 221, the heat pump device is started to transfer the heat of the air in the cooling air duct 210 into the heating air duct 220, and the hot air generated in the heating air duct 220 is transferred to the air feeding chamber 320 through the air feeding pipe 310.
In summary, in the ventilation system and the control method of the subway train of the present invention, the first air inlet pipe 110, the second air inlet pipe 120 and the air supply pipe 310 are disposed in the gap between the train inner shell and the train outer shell, so that the space between the train inner shell and the train outer shell is effectively utilized, the air conditioning assembly 200 with a relatively large weight is disposed at the bottom of the train outer shell, the center of gravity of the train body is greatly reduced, the top space of the train body is prevented from being invaded, the clear height of the inner shell can be further increased, the routine maintenance and repair of the heat pump device, the air supply adjusting device and the air exhaust adjusting device of the air conditioning assembly 200 by the train maintenance personnel are facilitated, the refrigeration air duct 210 and the heating air duct 220 are facilitated to be cleaned by the train maintenance personnel, the air supply cleaning of the ventilation system of the subway train is ensured, the second air inlet pipe 120 can collect the waste, so as to reduce the energy consumption of the heat pump device, save energy and protect environment.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A ventilation system of a subway train is characterized by comprising an air inlet assembly (100), an air conditioning assembly (200) and an air supply assembly (300), wherein the outer shell is positioned outside the inner shell, and a gap is formed between the inner shell and the outer shell;
the air inlet assembly (100) comprises a first air inlet device and a second air inlet device, the first air inlet device comprises a first air inlet pipe (110), the first air inlet pipe (110) is arranged in the gap, the air inlet end of the first air inlet pipe (110) is positioned at the top of the outer shell, and the air exhaust end of the first air inlet pipe (110) is positioned at the bottom of the outer shell; the second air inlet device comprises a second air inlet pipe (120) arranged at the bottom of the outer shell, and the air inlet end of the second air inlet pipe (120) is arranged opposite to the bogie of the vehicle body;
the air conditioning assembly (200) is arranged at the bottom of the outer shell, the air conditioning assembly (200) comprises a heat pump device, an air inlet adjusting device, an air exhaust adjusting device, a refrigerating air channel (210) and a heating air channel (220) which are arranged in parallel along the length direction of the vehicle body, an evaporator (230) of the heat pump device is arranged in the refrigerating air channel (210), and a condenser (240) of the heat pump device is arranged in the heating air channel (220); the air inlet adjusting device is respectively communicated with the air inlet ends of the refrigerating air duct (210) and the heating air duct (220) and the air outlet ends of the first air inlet pipe (110) and the second air inlet pipe (120);
air supply subassembly (300) include air supply arrangement and a plurality of blast pipe (310), blast pipe (310) are located in the space, air exhaust adjusting device communicate respectively in the end of airing exhaust of refrigeration wind channel (210) and hot air duct (220) and the air inlet end of blast pipe (310), the end of airing exhaust of blast pipe (310) communicate in air supply arrangement, air supply arrangement is located the top of interior casing just is located between interior casing and the shell body.
2. The ventilation system of the subway train as claimed in claim 1, wherein a wind deflector (130) is rotatably connected to the wind inlet end of said second wind inlet pipe (120), said wind deflector (130) has a closed wind guiding state and a continuous wind guiding state, when said wind deflector (130) is switched from the continuous wind guiding state to the closed wind guiding state, said wind deflector (130) closes the wind inlet end of said second wind inlet pipe (120), and said wind deflector (130) is disposed to be inclined to the horizontal plane, and the outer wall surface thereof faces the lower side of said train body; when the air deflector (130) is switched from a closed air guiding state to a continuous air guiding state, the air deflector (130) rotates to enable the air inlet end of the second air inlet pipe (120) to be located.
3. The ventilation system of a subway train as claimed in claim 1, wherein said air intake adjusting device comprises a cooling air intake valve (250) and a heating air intake valve (260), said cooling air intake valve (250) is disposed at the air intake end of said cooling air duct (210), said heating air intake valve (260) is disposed at the air intake end of said heating air duct (220);
when the valve plate of the refrigerating air inlet valve (250) is closed, the valve plate is obliquely arranged with the refrigerating air channel (210) so as to guide the air in the air inlet adjusting device to flow to the heating air channel (220); and a valve plate of the heating air inlet valve (260) is obliquely arranged with the heating air channel (220) when being closed, so as to guide the air in the air inlet adjusting device to flow to the refrigerating air channel (210).
4. The ventilation system of a subway train as claimed in claim 1, wherein said cooling air duct (210) is provided with a first waste heat discharge port (211) at an exhaust side of said evaporator (230), and said heating air duct (220) is provided with a second waste heat discharge port (221) at an exhaust side of said condenser (240); the exhaust adjusting device comprises a refrigerating exhaust valve (270) and a heating exhaust valve (280), the refrigerating exhaust valve (270) is arranged at the exhaust end of the refrigerating air duct (210), and the heating exhaust valve (280) is arranged at the exhaust end of the heating air duct (220);
a valve plate of the refrigeration exhaust valve (270) is obliquely arranged with the refrigeration air duct (210) when being closed so as to guide the air in the refrigeration air duct (210) to flow to the first waste heat outlet (211); and a valve plate of the heating exhaust valve (280) is obliquely arranged with the heating air duct (220) when being closed so as to guide the air in the heating air duct (220) to flow to the second waste heat outlet (221).
5. The ventilation system of subway trains as claimed in claim 4, wherein said cooling air duct (210) is provided with a first heat exchange opening and closing device (212) and a first heat exchange port (213) located at the air intake side of said evaporator (230), said heating air duct (220) is provided with a second heat exchange opening and closing device (222) and a second heat exchange port (223) located at the air intake side of said condenser (240);
the first heat exchange opening and closing device (212) is used for simultaneously closing or yielding the first heat exchange port (213) and the first waste heat discharge port (211), and the second heat exchange opening and closing device (222) is used for simultaneously closing or yielding the second heat exchange port (223) and the second waste heat discharge port (221).
6. The ventilation system of subway trains as claimed in claim 1, wherein said blast pipe (310) is provided with a blast valve on its air inlet end, said blast valve is used for closing or concessionally locating said blast pipe (310).
7. The ventilation system of subway trains as claimed in claim 1, wherein said end of said train body is provided with two said first air inlet pipes (110), and said two said first air inlet pipes (110) are respectively located at both sides of said train body; the middle part of the vehicle body is provided with at least two air supply pipes (310).
8. The ventilation system of subway trains as claimed in claim 1, wherein a plurality of mounting holes are formed at the top of said inner housing along the length direction of said train body, said blowing device comprises a blowing cavity (320) and a flow equalizing plate (330), the lower side of said blowing cavity (320) is connected to said mounting holes, said blowing pipe (310) is connected to the side of said blowing cavity (320), and said flow equalizing plate (330) is disposed at said mounting holes.
9. The ventilation system of subway trains as claimed in claim 8, wherein said blowing cavity (320) is provided with a plurality of dividing plates (340) inclined to the horizontal plane, a plurality of said dividing plates (340) are arranged along a reference slope, and said reference slope is inclined to the flow equalizing plate (330).
10. A method of controlling a ventilation system of a subway train, comprising:
in the cooling mode, the air deflector (130) is switched to a closed air guiding state, the first air inlet pipe (110) inputs air into the air inlet adjusting device, the cooling air inlet valve (250) and the cooling exhaust valve (270) are opened, the first heat exchange opening and closing device (212) simultaneously seals the first heat exchange opening (213) and the first waste heat discharge opening (211), the heating air inlet valve (260) and the heating exhaust valve (280) are closed, the second heat exchange opening and closing device (222) simultaneously lets the second heat exchange opening (223) and the second waste heat discharge opening (221), the heat pump device is started to transfer the heat of the air in the cooling air duct (210) to the heating air duct (220), and the cold air generated in the cooling air duct (210) is conveyed to the air supply cavity (320) through the air supply pipe (310);
in the heating mode, the air deflector (130) is switched to a continuous air guiding state, the first air inlet pipe (110) and the second air inlet pipe (120) input air into the air inlet adjusting device, adjusting the rotation angle of the air deflector (130) according to a set target temperature to adjust the air inlet proportion of the first air inlet pipe (110) and the second air inlet pipe (120), closing the refrigeration air inlet valve (250) and the refrigeration air exhaust valve (270), simultaneously closing the first heat exchange opening and closing device (212) at the first heat exchange port (213) and the first waste heat discharge port (211), opening the heating air inlet valve (260) and the heating air exhaust valve (280), simultaneously closing the second heat exchange port (223) and the second waste heat discharge port (221) by the second heat exchange opening and closing device (222), starting the heat pump device to transfer the heat of the air in the refrigeration air duct (210) into the heating air duct (220), the hot air generated in the heating air duct (220) is conveyed to the air supply cavity (320) through the air supply pipe (310).
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| CN202010533799.6A CN111806486B (en) | 2020-06-12 | 2020-06-12 | Ventilation system and control method of subway train |
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| CN202010533799.6A CN111806486B (en) | 2020-06-12 | 2020-06-12 | Ventilation system and control method of subway train |
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| CN111806486B CN111806486B (en) | 2021-06-08 |
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| CN111806486B (en) | 2021-06-08 |
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